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CVE-2021-45100
Published: Dec 16, 2021
Modified: Aug 4, 2024
PUBLISHED
Description
The ksmbd server through 3.4.2, as used in the Linux kernel through 5.15.8, sometimes communicates in cleartext even though encryption has been enabled. This occurs because it sets the SMB2_GLOBAL_CAP_ENCRYPTION flag when using the SMB 3.1.1 protocol, which is a violation of the SMB protocol specification. When Windows 10 detects this protocol violation, it disables encryption.
| Vendor | Product | Versions |
|---|---|---|
n/a | n/a | affected n/a |
References
https://github.com/cifsd-team/ksmbd/issues/550
x_refsource_MISC
https://github.com/cifsd-team/ksmbd/pull/551
x_refsource_MISC
https://marc.info/?l=linux-kernel&m=163961726017023&w=2
x_refsource_MISC
https://security.netapp.com/advisory/ntap-20220107-0001/
x_refsource_CONFIRM
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